Baby bottle with built-in thermometer



FIG. 1 is a front view of a baby bottle with built-in thermometer showing my new design.

FIG. 2 is a side view of the baby bottle with built-in thermometer.

FIG. 3 is a top view of the baby bottle with built-in thermometer; and,

FIG. 4 is a bottom view of the baby bottle with built-in thermometer. 

The ornamental design for a baby bottle with built-in thermometer, as shown and described. 